Oiling device for stock-dies.



I. THATGHER.

OILING DEVICE FOR STOCK DIES.

APPLICATION FILED MAY 27, 1908:

Patented Aug. 31, 1909.

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932,513; Specification of Letters Patent. Patented Au 31 1909 A ine-mobfiled May 27,1900. Serial no. easiae'o.

To altwhom it may concern:

Be it known that I,FRANK THATCHER, a

citizen of the United States, residin at El Paso, in the county of ElPaso an State of Texas, have invented new. and useful Improvements in()iling Devices for Stock Dies, of which the following is a specifica-.

plenished whenever necessary.

A further object of the invention is to so combine and arrange themechanical parts of the oiling device that they may be readily takenapart to facilitate the cleaning of the oil-in device as a whole.

With the above and other objects in view,

- the invention consists in the novel constructrolling means.

tion and arrangement herein fully described, illustrated and claimed. g

In the accompanying drawing, Figure 1 isa plan view of a thread-cuttingdie stock showm the oiling device-applied thereto.

' Fig. 2 is a longitudinal section through the same. Fig. 3' is anenlarged longitudinal section through the handle which is utilized asthe oil container, showing the valve conthe line 44 of Fig.3.

In the drawings, 1 designates the die stock which is chambered out toreceive the die 2, the latter being held in place by means ofthe usualretainer cap 3. The die stock is also provided with the'usual socketextensions 4 which receive the inner ends of the handles 5and 6.

The handles 5 and6 are ordinarily tubular, and in carrying out theresent invention, one of said handles, indicated at 5, is

provided at its inner end with an external valve seat 7 in connectionwith which anexternally-arranged valve 8 is employed, the latter beingmounted fast on the inner end Fig. 4 is a cross section on entirelythrough the tubular handle 5, as

shown -in Fig. 3.

In the outer end of the handle 5 there is arranged a bushing 10 which ispreferably secured into the handle, as best shown in Fig. 3, so that itmay be readily removed for the purpose of re air or cleanin The bushingis provide at its inner end with a central guide opening 11 for the stem9, and at a point nearer its outer end, said bushing is provided with anannular shoulder 12 against the outer side of which bears a guide 13forming a second bearing for the stem 9. Encircling the stem 9 withinthe bushing 10 is'a va ve-closing spring 14. This spring is interposedbetween the guide 11 at the inner end of the housing and a bearingshoulder 15 on the valve stem 9 so that the tension of said spring isexerted to hold the valve 8 normally closed.

The outer end of the bushing 10 is intern'ally threaded to receive anend cap or closure 16, the outer end of which is enlarged to form. ahead, as shown in the drawings, while one or more gaskets or packingrings 17 may be interposed between the head of the cap and theextremities of the handle 5 and bushing 10 to form a liquid-tight joint,the construction referred to being illustrated in. Fig. 3. The cap 16carries a push button 18, the stem or shank 19 of which is provided atits inner end with an annular stop shoulder 20 which works in a recess21 in the cap, the outer end of said recess.being reduced to form acorresponding shoulder against which the annular stop shoulder 20 bearswhen the button is in its outward position, and against which the headof the button bears when said button is pushed inward. At its inner end,the shank of the button is provided with a socket or recess 22 in whichthe outer extremity of the valve stem. 9 is received, as shown in Fig 3,the arrangement being such that when the button 18 is pushed inward, itacts to move the valve stem 9 in acorresponding direction to open thevalve 8 and allow the oil to pass to the die space of the stock. At thesame time, the construction described will admit of the "removal of thecap 16 to enable oil to be in- .5 bushing removably fitted stock and allparts of the oiling. mechanism may be detached from said handle, therebyiving free accessto all parts of the oiling device and enabling the sameto be kept in good working condition.

conduit leading to the die space and provided at its inner end with aterminal valve seat, an externally arranged valve movable relatively tosaid seat, a valve stem extending longitudinally through y a threadedensaid handle, a'

gagernent mul eater end of the handle and prowded -withja' gu ideopening for said stem, 5 valve-closmg spring engaging said stem andhoused within the bushing and removable therewith, a detachablefcafittin lnto the outer end of the bushing, an a pus button carried saidcap having a shouldered engagementtherewith and adapted to engage andmove the valve stem.

In testimon whereof I afiix my signature 25 in presence 0 two witnesses.

FRANK THATCHER. V W1tn esses: I

U. A; NOEN v WM, H. ENGEL.

